Oil drainage and collection system

Abstract

A system for draining and collecting used oil from an engine crank case which includes a drain valve threadably connected to the drain opening in the crank case, a receptacle for receiving the used oil and a valve actuator mounted on the receptacle. The drain valve is formed with an opening which exposes the underface of a spring biased valve member. The valve actuator is formed with a tubular member formed with contact members mounted on the distal end of the tubular member which is inserted into the drain valve opening and move the valve member to an open position so that the used oil drains through the tubular member and into the oil receptacle. The valve actuator is formed with a snap fitting coupler member which holds the oil receptacle to the drain valve while the oil is draining. The drain valve is opened and closed by a simple push or pull on the valve actuator without orientation, turning or threading of any parts. A simple snap closure mounted on the oil receptacle closes the opening in the receptacle.

I claim: 
     
       1. A system for draining and collecting used oil from an engine crank case having a threaded opening comprising: a. a drain valve threadably connected to said crank case opening having a housing, a valve chamber formed therein, a valve member mounted in said chamber, spring means normally biasing said valve member to a closed position, seat means sealably receiving said valve member and an internal cylindrical wall forming a discharge opening operably connected to said valve chamber;   b. receptacle means dimensioned for receiving the used oil from said crank case and formed with an opening therein;   c. a valve actuator formed with a tubular member connected to said receptacle means at one end and having a distal end dimensioned for close fitting insertion through said discharge opening in said valve housing and having a contact member connected to said distal end of said tubular member for engaging said valve member for movement against said spring means, and formed with an annular sealing member surrounding said tubular member which forms a coupling and a seal with said discharge opening; and   d. a closure member for sealably closing said distal end of said tubular member.   
     
     
       2. A system for draining and collecting used crank case oil from an engine crank case having a threaded opening comprising: a. a valve housing formed with an externally threaded portion and a passage therethrough threadably connected to said crank case threaded opening for receiving oil through said passage and formed with an annular outer wall and an internal wall defining an internal chamber having a first opening operatively connected to said passage and a second opening;   b. an annular member having an annular wall dimensioned for surrounding said housing outer wall in close fitting engagement and a base member connected to said annular wall and formed with a cylindrical internal wall forming a discharge passage in communication with said second opening of said valve housing, and said annular member is formed with an annular groove, opening toward said valve chamber in said valve housing and surrounding said internal wall forming said cylindrical discharge passage;   c. annular sealing means dimensioned for registration in said annular grove in said annular member;   d. a valve member formed with an annular planar land dimensioned for selective sealable engagement with said annular sealing means and mounted within said internal chamber of said valve housing;   e. biasing means mounted in said valve housing internal chamber biasing said valve member to a closed position;   f. receptacle means dimensioned for receiving the used oil from said crank case and formed with an opening therein;   g. a valve actuator formed with a tubular member connected to said receptacle at one end and having a distal end dimensioned for closed fitting insertion through said cylindrical discharge passage in said annular member and having a contact member connected to said distal end of said tubular member for engaging said valve member for movement against said biasing means, and formed with an annular sealing member forming a seal and coupling with said cylindrical discharge passage in said annular member; and   h. a closure member dimensioned for selectively closing said distal end of said tubular member.   
     
     
       3. A system as described in claim 2 comprising: a. said annular member is formed with an annular groove in said outside of said annular wall; and   b. a valve guard formed with an annular ring member dimensioned for close fitting frictional engagement with said outside wall of said annular member, a hinge member connected to said annular ring and a base member dimensioned for covering said base member of said annular member and a flange wall surrounding said annular wall of said annular member and formed with an annular protrusion in said flange wall for snap fitting receipt in said annular groove in said outside of said annular wall of said annular member.   
     
     
       4. A system as described in claim 2 wherein: a. said valve member is a circular disc having upper and lower planar lands; and   b. said closure member includes a flexible strand member connecting said closure member to said valve actuator.   
     
     
       5. A system as described in claim 4 wherein: a. said annular member is formed with an annular shoulder adjacent said cylindrical discharge passage; and   b. said sealing member of said valve actuator and said coupling means are combined in an annular protrusion extending radially outwardly from said tubular member adjacent and longitudinally inwardly from said contact member and dimensioned from sealing and coupling engagement with said annular shoulder of said annular member.   
     
     
       6. A system as described in claim 4 comprising: a. said contact member consists of a plurality of protrusions extending from said tubular member and said tubular member is formed with a plurality of annularly spaced slots adjacent said distal end of said tubular member; and   b. said closure member is formed with an inner cylindrical wall terminating in a tapered internal annular wall and a closed end dimensioned for selected insertion into said tubular member of said valve actuator and an annular flange wall surrounding and spaced from said inner cylindrical wall and formed with an annular sealing member dimensioned and located for selectively engaging said annular sealing member on said tubular member for snap closing and locking of said closure member on said valve actuator.